I was hoping for a way to improve the modeling, not the line work, in sort of the same way that many plugins will allow you to adjust the raster image before exporting. I find that no matter how much I play with the rudimentary lighting controls , I get unsatisfactory images that I must totally recolor to get anything slightly realistic.

Is there a plugin available to improve the modeling when I export to EPS? Many are available to improve the raster image but I cannot find a way to improve vector export.